Electronic Components

RARA ULM1000 Series Products

	Product name	Dimensions	Power Rating	Minimum Resistance	Maximum Resistance	Tolerance	Temperature Coefficient	Datasheet	Add to enquiry
	RARA ULM600	59.00 x 61.00 x 235.00mm	330W, 600W	0.1Ω	94Ω	±1%, ±2%, ±5%, ±10%	±260 ppm/°C		Add to Enquiry
	RARA ULM800	59.00 x 61.00 x 285.00mm	360W, 800W	0.1Ω	112Ω	±1%, ±2%, ±5%, ±10%	±260 ppm/°C		Add to Enquiry
	RARA ULM1000	59.00 x 61.00 x 335.00mm	400W, 1kW	0.1Ω	140Ω	±1%, ±2%, ±5%, ±10%	±260 ppm/°C		Add to Enquiry
	RARA ULM1200	59.00 x 61.00 x 405.00mm	480W, 1.2kW	0.1Ω	160Ω	±1%, ±2%, ±5%, ±10%	±260 ppm/°C		Add to Enquiry
	RARA ULM1600	100.00 x 50.00 x 330.00mm	570W	0.3Ω	88Ω	±1%, ±5%, ±10%	±260 ppm/°C		Add to Enquiry
	RARA ULM2000	100.00 x 50.00 x 400.00mm	650W	0.45Ω	113Ω	±1%, ±5%, ±10%	±260 ppm/°C		Add to Enquiry
	RARA ULM2400	100.00 x 50.00 x 480.00mm	720W	0.6Ω	144Ω	±1%, ±5%, ±10%	±260 ppm/°C		Add to Enquiry
	RARA ULM2800	100.00 x 50.00 x 550.00mm	750W	0.7Ω	135Ω	±1%, ±5%, ±10%	±260 ppm/°C		Add to Enquiry

ULM Series Description

Introducing the ULM resistors, an exceptional solution meticulously designed for industrial applications with the added assurance of UL approval. Crafted with precision, the ULM series features metal-clad resistors housed in durable aluminum, engineered for efficient chassis mounting, and offering versatile power ratings from 330W to 750W in free air and 600W to 1200W when heat sink mounted.

Engineers benefit from a broad resistance range, spanning from 0.1 to 160Ω (inductive) and 0.1 to 48Ω (non-inductive). Tolerance options of ±1, ±2, ±5, and ±10 percent provide a customized solution for diverse applications. The maximum temperature coefficient of resistance (TCR) is capped at 260 ppm/°C, ensuring stability across a wide temperature range from -55℃ to +200℃.

The ULM resistors excel in braking and snubber applications, motor drives, and power sources for industrial equipment, showcasing unparalleled adaptability in diverse engineering scenarios. The added distinction of UL approval establishes the ULM series as a top-tier choice for engineers prioritizing compliance with the highest safety standards in their industrial projects.

For engineers considering a non-UL-approved alternative, the IRM series stands as a robust choice. Housed in durable aluminum and engineered for efficient chassis mounting, the IRM series offers similar power ratings and resistance options, making it a reliable solution for various industrial applications.

ULM Downloads

• RARA IRV, ULV, IRM & ULM Series Datasheet 600W-1200W
• RARA IRM & ULM Series Datasheet 1600W-2800W

Supporting Manufacturer Information

• RARA Product Brochure